Simulation of germination of pioneer species along an experimental drought gradient.
J Environ Biol
; 27(4): 679-85, 2006 Oct.
Article
en En
| MEDLINE
| ID: mdl-17405330
ABSTRACT
The germination of ten plant species from the Iberian Peninsula was assessed along a water deficit gradient between -0. 1652 (moist) and -0.4988 MPa (dry) of osmotic potential, created by addition of increasing concentrations of polyethylene glycol (PEG 6000) to distilled water in which plants were grown hydroponically. The level and rate of germination of Daucus carota and Thapsia villosa significantly decreased with decreasing psi. Seeds of Dactylis glomerata and Dittrichia viscosa had positive germination responses to low osmotic potentials; germination of Epilobium hirsutum was not affected by osmotic potential. Germination of Medicago arabica, Cynosurus cristatus, Cistus ladanifer and Cistus albidus, was no favored by the addition of polyethylene glycol (PEG). Germination of Foeniculum vulgare and Thapsia villosa was inhibited by PEG.
Buscar en Google
Banco de datos:
MEDLINE
Asunto principal:
Semillas
/
Agua
/
Germinación
Idioma:
En
Revista:
J Environ Biol
Año:
2006
Tipo del documento:
Article
País de afiliación:
España